Frequencies for first 10,000 rows of state variable in drimpair dataset :

      State |
     Number |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,219       12.19       12.19
          2 |         93        0.93       13.12
          4 |      1,126       11.26       24.38
          5 |        740        7.40       31.78
          6 |      3,796       37.96       69.74
          8 |        590        5.90       75.64
          9 |        298        2.98       78.62
         10 |        144        1.44       80.06
         11 |         29        0.29       80.35
         12 |      1,965       19.65      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 18 Apr 2016